PURCHASE FOR DRILL SLEEVE FOR LCP SCREWS ? 2.7 MM ,DEPTH ELECTRODE: SPENCER PROBE DEPTH ELECTRODE 10 CONTACT DOUBLE SIDED,LCP DRILL SLEEVE 2.4, WITH SCALE UP TO 30 MM, FOR DRILL BITS ? 1.8 MM,BIOPSY SEALING DEVICE&DRILL BIT NAVIGATED 2.4 MM (EXPIRED)